SYNOPSIS

       stty [-F DEVICE] [--file=DEVICE] [SETTING]...
       stty [-F DEVICE] [--file=DEVICE] [-a|--all]
       stty [-F DEVICE] [--file=DEVICE] [-g|--save]


DESCRIPTION

       Print or change terminal characteristics.

       -a, --all
              print all current settings in human-readable form

       -g, --save
              print all current settings in a stty-readable form

       -F, --file=DEVICE
              open and use the specified DEVICE instead of stdin

       --help display this help and exit

       --version
              output version information and exit

       Optional  - before SETTING indicates negation.  An * marks
       non-POSIX settings.  The underlying system  defines  which
       settings are available.

   Special characters:
       * dsusp CHAR
              CHAR  will  send  a terminal stop signal once input
              flushed

       eof CHAR
              CHAR will send an end of file (terminate the input)

       eol CHAR
              CHAR will end the line

       * eol2 CHAR
              alternate CHAR for ending the line

       erase CHAR
              CHAR will erase the last character typed

       intr CHAR
              CHAR will send an interrupt signal

       kill CHAR
              CHAR will erase the current line

       * lnext CHAR
              CHAR will enter the next character quoted


       * swtch CHAR
              CHAR will switch to a different shell layer

       * werase CHAR
              CHAR will erase the last word typed

   Special settings:
       N      set the input and output speeds to N bauds

       * cols N
              tell the kernel that the terminal has N columns

       * columns N
              same as cols N

       ispeed N
              set the input speed to N

       * line N
              use line discipline N

       min N  with  -icanon,  set N characters minimum for a com­
              pleted read

       ospeed N
              set the output speed to N

       * rows N
              tell the kernel that the terminal has N rows

       * size print the number of rows and columns  according  to
              the kernel

       speed  print the terminal speed

       time N with  -icanon,  set  read  timeout of N tenths of a
              second

   Control settings:
       [-]clocal
              disable modem control signals

       [-]cread
              allow input to be received

       * [-]crtscts
              enable RTS/CTS handshaking

       csN    set character size to N bits, N in [5..8]

       [-]cstopb

   Input settings:
       [-]brkint
              breaks cause an interrupt signal

       [-]icrnl
              translate carriage return to newline

       [-]ignbrk
              ignore break characters

       [-]igncr
              ignore carriage return

       [-]ignpar
              ignore characters with parity errors

       * [-]imaxbel
              beep and do not flush a  full  input  buffer  on  a
              character

       [-]inlcr
              translate newline to carriage return

       [-]inpck
              enable input parity checking

       [-]istrip
              clear high (8th) bit of input characters

       * [-]iuclc
              translate uppercase characters to lowercase

       * [-]ixany
              let  any  character  restart output, not only start
              character

       [-]ixoff
              enable sending of start/stop characters

       [-]ixon
              enable XON/XOFF flow control

       [-]parmrk
              mark  parity   errors   (with   a   255-0-character
              sequence)

       [-]tandem
              same as [-]ixoff

   Output settings:
       * bsN  backspace delay style, N in [0..1]
       * [-]ofill
              use fill (padding) characters instead of timing for
              delays

       * [-]olcuc
              translate lowercase characters to uppercase

       * [-]onlcr
              translate newline to carriage return-newline

       * [-]onlret
              newline performs a carriage return

       * [-]onocr
              do not print carriage returns in the first column

       [-]opost
              postprocess output

       * tabN horizontal tab delay style, N in [0..3]

       * tabs same as tab0

       * -tabs
              same as tab3

       * vtN  vertical tab delay style, N in [0..1]

   Local settings:
       [-]crterase
              echo erase characters as backspace-space-backspace

       * crtkill
              kill all line by obeying the echoprt and echoe set­
              tings

       * -crtkill
              kill all line by obeying the echoctl and echok set­
              tings

       * [-]ctlecho
              echo control characters in hat notation (`^c')

       [-]echo
              echo input characters

       * [-]echoctl
              same as [-]ctlecho

       [-]echoe
              same as [-]crterase

              enable erase, kill, werase, and rprnt special char­
              acters

       [-]iexten
              enable non-POSIX special characters

       [-]isig
              enable interrupt, quit, and suspend special charac­
              ters

       [-]noflsh
              disable flushing after interrupt and  quit  special
              characters

       * [-]prterase
              same as [-]echoprt

       * [-]tostop
              stop  background jobs that try to write to the ter­
              minal

       * [-]xcase
              with icanon, escape with `\' for uppercase  charac­
              ters

   Combination settings:
       * [-]LCASE
              same as [-]lcase

       cbreak same as -icanon

       -cbreak
              same as icanon

       cooked same  as brkint ignpar istrip icrnl ixon opost isig
              icanon, eof and eol  characters  to  their  default
              values

       -cooked
              same as raw

       crt    same as echoe echoctl echoke

       dec    same  as  echoe echoctl echoke -ixany intr ^c erase
              0177 kill ^u

       * [-]decctlq
              same as [-]ixany

       ek     erase and kill characters to their default values

       evenp  same as parenb -parodd cs7

       oddp   same as parenb parodd cs7

       -oddp  same as -parenb cs8

       [-]parity
              same as [-]evenp

       pass8  same as -parenb -istrip cs8

       -pass8 same as parenb istrip cs7

       raw    same as  -ignbrk  -brkint  -ignpar  -parmrk  -inpck
              -istrip -inlcr -igncr -icrnl  -ixon  -ixoff  -iuclc
              -ixany -imaxbel -opost -isig -icanon -xcase  min  1
              time 0

       -raw   same as cooked

       sane   same  as  cread  -ignbrk brkint -inlcr -igncr icrnl
              -ixoff -iuclc -ixany imaxbel  opost  -olcuc  -ocrnl
              onlcr -onocr -onlret -ofill -ofdel nl0 cr0 tab0 bs0
              vt0 ff0 isig icanon iexten echo echoe echok -echonl
              -noflsh -xcase -tostop -echoprt echoctl echoke, all
              special characters to their default values.

       Handle the tty line connected to standard input.   Without
       arguments,  prints  baud rate, line discipline, and devia­
       tions from stty sane.  In settings, CHAR is  taken  liter­
       ally, or coded as in ^c, 0x37, 0177 or 127; special values
       ^- or undef used to disable special characters.


AUTHOR

       Written by David MacKenzie.


REPORTING BUGS

       Report bugs to <bug-coreutils@gnu.org>.


COPYRIGHT

       Copyright © 2003 Free Software Foundation, Inc.
       This is free software; see the source for  copying  condi­
       tions.  There is NO warranty; not even for MERCHANTABILITY
       or FITNESS FOR A PARTICULAR PURPOSE.


SEE ALSO

       The full documentation for stty is maintained as a Texinfo
       manual.   If  the  info  and  stty  programs  are properly
       installed at your site, the command

              info stty

       should give you access to the complete manual.

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